(a) No person shall discharge or cause to be discharged any stormwater, surface water, groundwater, roof runoff, subsurface drainage, uncontaminated cooling water or unpolluted industrial process waters to any sanitary sewer.
(b) Stormwater and all other unpolluted drainage shall be discharged to such sewers as are specifically designated as combined sewers or storm sewers, or to a natural outlet approved by the Superintendent. Industrial cooling water or unpolluted process waters may be discharged, on approval of the City Engineer, to a storm sewer, combined sewer or natural outlet.
(c) No person shall discharge or cause to be discharged any of the following described waters or wastes to any public sewer.
(1) Pollutants which create a fire or explosion hazard in the POTW, including, but not limited to, wastestreams with a closed cup flashpoint of less than 140 degrees Fahrenheit or 60 degrees Centigrade using the test method specified in 40 CFR 261.21.
(2) Any waters or wastes containing toxic or poisonous solids, liquids or gases in sufficient quantity, either singly or by interaction with other wastes, to injure or interfere with any sewage treatment process, render sludges unfit for reclamation or reuse, constitute a hazard to humans or animals, create a public nuisance, or create any hazard in the receiving waters of the sewage treatment plant. (Ord. 7662–09. Passed 8-27-09.)
(3) Any waters or wastes having a pH lower than 6.5 S.U. or higher than 9.0 S.U. unless specially approved by a current enforceable Industrial Pretreatment Indirect Discharge Permit, the maximum range permitted under any circumstance shall be from a minimum of 5.0 .SU. to a maximum of 11.0 S.U. The “Indirect Discharge Permits” shall be as reviewed and approved by the Director of Public Service in accordance with the current approved Industrial Pretreatment Program.
Table 1: Industrial Local Limits
Pollutants Limits, mg/l | Previous Local Limits, mg/l | Proposed Daily |
Bis (2-ethyhexyl) Phthalate | BMP | BMP |
Cadmium | 0.225 | 0.175 |
Total Chromium | 1.8 | 1.8 |
Hexavalent Chromium | 0.225 | 0.225 |
Copper | 0.490 | 0.17 |
Cyanide | 0.05 | 0.05 |
Lead | 0.350 | 0.350 |
Mercury | 0.0002 | 0.0002 |
Nickel | 0.680 | 0.680 |
Silver | 0.035 | 0.035 |
Zinc | 4.0 | 4.0 |
(Ord. 7952-14. Passed 5-12-14.)
(4) Solid or viscous substances in quantities or of such size capable of causing obstruction to the flow in sewers or other interference with the proper operation of the sewage works such as, but not limited to, ashes, cinders, sand, mud, straw, shavings, metal, glass, rags, feathers, tar, plastics, wood, unground garbage, whole blood, paunch manure, hair and fleshings, entrails and paper dishes, cups, milk containers, etc., either whole or ground by garbage grinders.
(5) Pollutants which result in the presence of toxic gases, vapors, or fumes within the POTW in a quantity that may cause acute worker health and safety problems.
(6) Petroleum oil, non-biodegradable cutting oil, or products of mineral oil original in amounts that will cause interference or pass through the POTW.
(d) No person shall discharge or cause to be discharged the following described substances, materials, water or wastes without first obtaining a wastewater discharge permit which specifies the conditions for discharge of such wastes if it appears likely in the opinion of the Superintendent that such wastes can harm either the sewers, sewage treatment process or equipment, have an adverse effect on the receiving stream, or can otherwise endanger life, limb, public property or constitute a nuisance. In issuing a discharge permit, the Superintendent will give consideration to such factors as the quantities of subject wastes in relation to flows and velocities in the sewers, materials of construction of the sewers, nature of the sewage treatment process, capacity of the sewage treatment plant, degree of treatability of wastes in the sewage treatment plant and other pertinent factors. The substances limited are:
(1) Any liquid or vapor having a temperature higher than 104°F (40°C).
(2) Any water or waste containing fats, wax, grease or oils, whether emulsified or not, in excess of 100 mg/1 or containing substances which may solidify or become viscous at temperatures between 32 and 104°F (0 and 40°C).
(3) Any garbage that has not been properly shredded. The installation and operation of any garbage grinder equipped with a motor of three-fourths horsepower (0.76 hp metric) or greater shall be subject to the review and approval of the superintendent.
(4) Any waters or wastes containing strong acid iron pickling wastes, or concentrated plating solutions whether neutralized or not.
(5) Any waters or wastes containing phenols or other taste or odor-producing substances, in such concentrations exceeding limits which may be established by the Superintendent as necessary, after treatment of the composite sewage, to meet the requirements of the State, Federal or other public agencies of jurisdiction for such discharge to the receiving waters.
(6) Any radioactive wastes or isotopes of such half-life or concentration as may exceed limits established by the Superintendent in compliance with applicable State or Federal regulations.
(7) Any waters or wastes having a pH in excess of 9.0 SU.
(8) Material which exert or cause the following:
A. Unusual concentrations of inert suspended solids (such as, but not limited to, Fullers earth, lime slurries and lime residues) or of dissolved solids (such as, but not limited to, sodium chloride and sodium sulfate).
B. Excessive discoloration (such as, but not limited to, dye wastes and vegetable tanning solutions).
C. Unusual BOD, COD or chlorine requirements in such quantities as to constitute a significant load on the sewage treatment works.
D. Unusual volume of flow or concentration of wastes constituting "slugs" as defined herein. No holding tank wastes may be discharged without prior written approval of the Superintendent.
(9) Waters or wastes containing substances which are not amenable to treatment or reduction by the sewage treatment processes employed, or are amenable to treatment only to such degree that the sewage treatment plant effluent cannot meet the requirements of other agencies having jurisdiction over discharge to the receiving waters.
(e) Federal Categorical Pretreatment Standards.
(1) Upon promulgation of the Federal Categorical Pretreatment Standard for control of toxic pollutants as designated in Section 307(a) of the Federal Act for a particular industrial subcategory, the Federal Standard, if more stringent than limitations imposed under this chapter for sources in that subcategory, shall immediately supersede the limitations imposed under this chapter. The Superintendent shall notify all affected Users of the applicable reporting requirements under 40 CFR, Section 403.12, and shall modify affected users wastewater discharge permits accordingly as provided in Section 931.07(c).
(2) Where the City's Wastewater Treatment works achieves consistent removal of pollutants limited by Federal Pretreatment Standards, the City may apply to the State Approval Authority for modification of specific limits in the Federal Pretreatment Standards. "Consistent removal" means reduction in the amount of a pollutant or alteration of the nature of the pollutant by the Wastewater Treatment Works to a less toxic or harmless state in the effluent which is achieved by a system in ninety-five percent (95%) of the samples taken when measured according to the procedures set forth in Section 403.7(c)(2) and amendments thereto of Title 40 of the Code of Federal Regulations, Part 403, "General Pretreatment Regulations for Existing and New Sources of Pollution" promulgated pursuant to the Act. The City may modify pollution discharge limits in the Federal Pretreatment Standards if the requirements contained in 40 CFR, Part 403, Section 403.7 are fulfilled and prior approval from the Approval Authority is obtained.
(3) State requirements and limitations on discharges shall apply in any case where they are more stringent than Federal requirements and limitations or those in this chapter.
(4) New Sources shall install and have in operating condition, and shall "start-up" pollution control equipment required to meet applicable Pretreatment Standards before beginning to discharge. Within the shortest feasible time (not to exceed ninety days), New Sources must meet all applicable Pretreatment Standards. New Sources are required to submit Baseline Monitoring Reports (BMRs) at least ninety days prior to commencement of discharge. New Sources are required to include information on pretreatment methods they intend to use, and provide data on production, flow and amounts of regulated pollutants on a schedule as determined by the Service Director.
(5) When the limits in a Categorical Pretreatment Standard are expressed only in terms of mass of pollutant per unit of production, the Service Director may convert the limits to equivalent limitations expressed either as equivalent mass per day or concentration limits for purposes of calculating effluent limitations applicable to individual industrial users in accordance with 40 CFR 403.6(c)(5) and 40 CFR 403.6(c)(6).
(6) Equivalent limitations calculated in accordance with paragraphs 40 CFR 403.6(c)(3) and 40 CFR 403.6(c)(4) shall be deemed Pretreatment Standards for the purposes of Section 307(d) of the Act and this chapter. Industrial Users will be required to comply with the equivalent limitations in lieu of the promulgated categorical standards from which the equivalent limitations were derived.
(7) Categorical industrial users can be reclassified by the City to Non-Significant Categorical Industrial Users if the Service Director decides such reclassification is appropriate. The requirements for qualification as a Non-Significant Categorical Industrial User follow.
A. The industrial user does not discharge more than one hundred gallons per day of total categorical wastewater. That does not include sanitary, non-contact cooling and boiler blowdown wastewater unless it is specifically included in the categorical pretreatment standard.
B. No untreated concentrated wastewater, which is regulated by the categorical pretreatment standards, may be discharged at any time.
C. The following certification statement must be submitted annually to the City:
"Based on my inquiry of the person or persons directly responsible for managing compliance with the categorical pretreatment standards under 40 CFR [specify applicable national pretreatment standards part or parts], I certify that, to the best of my knowledge and belief, during the period from [specify month, day and year] to [ specify month, day and year]:
1. "The facility described as [insert facility name] met the definition of a nonsignificant categorical industrial user as described in paragraph (P) of rule 3745-3-01 of the Ohio Administrative Code;
2. "The facility complied with all applicable pretreatment standards and requirements during this reporting period; and
3. "The facility never discharged more than one hundred gallons of total categorical wastewater on any given day during this reporting period. This compliance certification is based upon the following information:"
Appropriate justification in support of this statement is required to be submitted with this certification statement and may include water billing records, production records, etc.
D. If the industrial user is located upstream of a combined or sanitary sewer overflow the following additional requirements must be met for the application of this classification:
1. The industrial user does not discharge wastewater that is regulated by categorical pretreatment standards or,
2. The industrial user must not have been in significant noncompliance at any time in the past two years
3. Procedures for issues relating combined or sanitary sewer overflows must be addressed through either a long-term control plan, an approved combined sewer system operation plan implementing the nine minimum controls, or the program modification request.
E. At least once a year the City will evaluate whether the industrial user still meets the requirements for classification as a Non-Significant Categorical Industrial User and document the evaluation.
(8) Categorical industrial users can be reclassified by the City to Mid-Tier Categorical Industrial Users if the Service Director decides such reclassification is appropriate. A mid-tier user may have its reporting frequency reduced to no less than once a year unless required more often by the categorical pretreatment standard or the Director of Ohio EPA. The requirements for qualification as a Mid-Tier Categorical Industrial User follow. If the user no longer meets these criteria, then the City will immediately begin inspecting and monitoring the user as a Categorical Industrial User.
A. The industrial user must not discharge total categorical wastewater that exceeds:
1. Zero point zero one (0.01) percent of the design dry weather hydraulic capacity of the receiving POTW;
2. Five thousand (5,000) gallons per day of total categorical wastewater;
3. Zero point zero one (0.01) percent of the design dry weather organic treatment capacity of the receiving POTW; and
4. Zero point zero one (0.01) percent of the maximum allowable headworks loading for any pollutant regulated by the applicable categorical pretreatment standards for which a local limit has been developed.
B. The industrial user's flow must be monitored by a continuous effluent flow monitoring device unless the user discharges in batches. (Ord. 7662-09. Passed 8-27-09.)
C. The industrial user must not have been in significant noncompliance in the past two years. (Ord. 7968-14. Passed 7-28-14.)
D. The daily flow rates, production levels, or pollutant levels of the industrial user cannot vary so significantly that decreasing the reporting requirement would result in data that are not representative of conditions occurring during the reporting period.
E. If the industrial user is located upstream of a combined or sanitary sewer overflow, the issues relating the overflows must be addressed through either a long-term control plan, an approved combined sewer system operation plan implementing the nine minimum controls, or the program modification request.
F. The industrial user will be inspected and the effluent randomly sampled at least once every two years by the City.
(f) If any waters or wastes are discharged, or are proposed to be discharged to the public sewers which waters contain the substances or possess the characteristics enumerated in subsection (d) hereof, and which in the judgment of the Superintendent may have a deleterious effect upon the sewage works, processes, equipment or receiving waters, or which otherwise create a hazard to life or constitute a public nuisance, the Superintendent may:
(1) Reject the wastes.
(2) Require pretreatment to an acceptable condition for discharge to the public sewer.
(3) Require control over the quantities and rates of discharge to the public sewers.
(4) Require payment to cover the added cost of handling and treating the wastes not covered by existing taxes or sewer charges under the provisions of subsection (j) hereof. If the Superintendent permits the pretreatment or equalization of waste flows, the design and installation of the plants and equipment shall be subject to the review and approval of the Superintendent and subject to the requirements of all applicable codes, ordinances and laws.
(5) Require the discharger to obtain a wastewater discharge permit in which wastewater conditions and limitations are specified as provided in Section 931.07.
(g) Grease, oil and sand interceptors shall be provided when, in the opinion of the Superintendent, they are necessary for the proper handling of liquid wastes containing grease in excessive amounts, or any flammable wastes, sand or other harmful ingredients, except that such interceptors shall not be required for private living quarters or dwelling units. All interceptors shall be of a type and capacity approved by the Superintendent and shall be located as to be readily accessible for cleaning and inspection.
(h) Where preliminary treatment or flow-equalizing facilities are provided for any waters or wastes, they shall be maintained continuously in satisfactory and effective operation by the owner at his expense and shall be maintained by him so as to be safe and accessible at all times.
(i) When necessary, by contract or ordinance, to establish rates to be charged for specific types of wastes, or wastes which have a strength exceeding 2,919 lbs. BOD5 per million gallons (350 mg/l) and/or 3,336 lbs. suspended solids per million gallons (400 mg/l), the Service Director shall determine a method by which to establish such a rate. Such rates or charges shall be subject to approval of the City Council which shall investigate the rates and agree to establish or reject the rates.
(j) Shut-off valves shall be installed on all industrial connections to the sewer system at the expense of the industry making the connection. The valve will be controlled only by the Service Director or his authorized personnel.
(k) A non-clog type of measuring device or other approved measuring device shall be installed on all industrial discharge lines connected to the sewer system and continuous type recording devices (twenty-four hour) shall be installed at the Wastewater Works and telemetering shall be provided for and maintained, whenever flows from the industry exceed 100,000 gallons per day. The installation and maintenance for this equipment shall be borne by the industry discharging the industrial wastes.
(l) Changes in any industrial process, from which the wastes are to be discharged into the sewerage system, shall be brought to the attention of the Service Director before the discharge is made.
(m) Consistent with Federal regulations, the City reserves the right to establish by ordinance more stringent limitations or requirements on dischargers or the POTW if deemed necessary to comply with the objectives of this chapter.
(n) No statement contained in this section shall be construed as preventing any special agreement or arrangement between the City and any industrial concern whereby an industrial waste of unusual strength or character may be accepted by the City for treatment, subject to payment therefore, by the industrial concern, provided that the conditions of Section 931.05(c) are not violated.
(o) No person shall access the sewer system or POTW for any activity including discharge of hauled septic or industrial wastes except at locations and at times as designated by the Service Director. Any removal of manhole lids or other access to the sewer system for the purpose of discharging wastes at times and/or locations other than those designated by the Service Director, or without the expressed permission of the Service Director, shall be considered a violation and shall be subject to enforcement action including fines and penalties allowed under this chapter.
(p) No person or entity shall discharge sewage with pollutant concentrations in excess of normal strength domestic sewage unless the person is issued a wastewater discharge permit which allows the discharge of such pollutants. Specific limitations will be listed in the discharge permit. The Superintendent has on file, technically justifiable local industrial discharge limits which will be periodically recalculated from laboratory analyses of sanitary sewage samples from local sewers that do not include industrial discharges.
(q) If a violation occurs for mercury, the industry will be required to change the method of analysis to Method 1631 for the duration of its permit.
(Ord. 7662-09. Passed 8-27-09.)